'Postpartum facial': Jessica Alba treats herself to a luxurious spa day after welcoming son Hayes on New Year's Eve.<br /><br />It's been two-and-a-half weeks since she welcomed son Hayes Warren on New Year's Eve. <br />And on Friday, Jessica Alba treated herself to a much-deserved spa day, which she documented on Instagram.<br />The Honest co-founder was her own best advert, as products from her own skincare line were used on her face.<br />
